Kyle Busch's wife, Samantha Busch, recently lit up her Instagram story with some exciting news about their son, Brexton Busch. Out of five races in the 600 Speedweek dirt track Racing Series, Brexton has clinched four wins. While Kyle may not be having the best season, his son Brexton is making waves.The third-generation racer started his career in 2020 when he was merely five, starting in the Beginner Box Stock division at Millbridge Speedway and Mountain Creek Speedway. Just a month after hitting the track, Brexton won his first-ever race at Mountain Creek Speedway.Brexton Busch has been checking off his goals one by one, most notably winning the Saturday Millbridge Beginner Box championship in 2022. He won the Mountain Creek Beginner Box championship the same year and the Tuesday Night Beginner Box Millbridge championship in 2023.After renewing his sponsorship with SERVPRO this year in February, Brexton has been on a tear, winning races left and right. During the 600 Speedweek dirt car series, he competed against his peers in five races held at Spirit Auto Center on July 14, Airport Speedway on July 15, Greenwood Valley on July 16, Action Track USA on July 17, and Linda’s Speedway on July 18, 2024.After clinching victories in three consecutive races, Brexton continued his winning streak by taking the fourth race a day ago. Happy by her son's fourth straight win, Samantha Busch shared her pride on Instagram. She uploaded a photo of Brexton holding the checkered flag, clearly overjoyed by his achievement."4/4! Hard Battle all night but he grabbed the 🏁."She also posted another story with a picture of Brexton Busch with his little sister Lennix Key Busch.Samantha Busch Brexton Busch Instagram StorySamantha Busch warms hearts with a family video on social mediaWith her husband Kyle Busch by her side and their kids, Brexton and Lennix, Samantha Busch posed for a photo ahead of the Brickyard 400's practice run scheduled for Friday, July 19. For this special family photoshoot, Kyle Busch chose a semi-formal look topped with an overcoat, while Samantha Busch sparkled in a glittery pink dress. Brexton’s outfit echoed his dad’s style but with a relaxed vibe, and Lennix looked adorable in a pink dress adorned with dark pink stones.The caption under their photo was touching:"Capturing precious moments with the ones who matter most❤️📸." View this post on Instagram Instagram PostAs Kyle Busch faces challenges on the track, struggling to finish races, Brexton's racing successes are bringing a ray of pride to his parents. But with two wins already at Indianapolis Motor Speedway, Kyle Busch has a shot at reigniting his season and pushing for the playoffs at the upcoming Brickyard 400. If his car can keep the pace and his pit crew stays sharp, he might just find himself kissing the bricks once more.